We compared the median survival score of BLTP2 deletion with the deletion mutants of ERBB2/HER2, a known driver of breast cancer growth44, LAMTOR1, a gene critical for mTORC1-mediated growth signalling downstream of ERBB2/HER2, and VPS13C, encoding a homologue of BLTP2. The gene discussed is BLTP2; the disease is breast cancer.